Answer:
The pressure of the air in the tyre is 20 kPa
Explanation:
The parameters for the bicycle pump and tyre are;
The volume of air contained in the bicycle pump, V₁ = 20 cm³
The pressure of the air contained in the bicycle pump, P₁ = 100 kPa
The volume (available) of the tyre, where the air is pumped, V₂ = 100 cm³
Let P₂ represent the pressure in the tyre after the air is pumped
By Boyle's law, we have that at constant temperature, the volume of a given mass of gas is inversely proportional to its pressure;
Mathematically, Boyle's law gives the following equation;
P₁ × V₁ = P₂ × V₂
∴ P₂ = (P₁ × V₁)/V₂
Substituting the known values gives;
P₂ = (100 kPa × 20 cm³)/(100 cm³)
∴ P₂ = 100 kPa × 1/5 = 20 kPa
P₂ = 20 kPa
The pressure of the air in the tyre = P₂ = 20 kPa.
Because the Earth's axis is not "straight up and down" as we move
around the sun.
So when we're on one side of the sun, the top pole leans slightly toward
the sun. During that time the sun shines more directly on the top half
of the Earth, and less directly on the bottom half. The people on the
top half see the sun higher in the sky, and their weather is warmer,
while the people on the bottom half see the sun lower in the sky, and
their weather is cooler.
Then, when we're on the other side of the sun, the top pole leans slightly
away from the sun. During that time the sun shines more directly on the
bottom half
of the Earth, and less directly on the top half. The people on
the bottom half see the sun higher in the sky, and their weather is warmer,
while the people on the top half see the sun lower in the sky, and their
weather is cooler.
The Earth makes the complete trip around the sun in one year, so the
people on the Earth go through this cycle of higher/lower sun and
warmer/cooler weather every year.
Ight bet
I told my friend she was drawing her eye brows to high and she look surprised
You don’t need a parachute to go skydiving but you do need it to go twice
People only call me ugly till they figure out how much money I make then that call me ugly and poor
You’re not completely useless you can always serve as a bad example
Oml... Its physical... Unless if your turning that wheat into bread by using fire it would be chemical.
Yeeeeeeeetus
